Motor neurone cell from the spinal cord

Confocal microscope image of a motor neurone cell in a rat spinal cord. The cell was fluorescently labelled with a dye from the muscle it innervates in order to identify it within the spinal cord. It was intracellularly injected with another fluorescent dye (lucifer yellow), then optically sectioned with the confocal microscope. The individual sections were then put back together to give a height-coded image, with red being up (towards the viewer) and blue down (away from the viewer).

Dr David Becker, Department of Anatomy and Developmental Biology, University College London.